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SPECTRUMANALYZERS

ModelMS2651BMS2661B Trace A: Displays frequency spectrumTrace B: Displays frequency spectrum Trace Time: Displays time domain waveform at center frequency Trace A/B:Displays Trace A and Trace B simultaneously. Simultaneous sweep of same frequency, alternate sweep of Display functionsindependent frequenciesTrace A/BG:Displays frequency region to be observed (background) and object band (foreground) selected from background with zone marker simultaneously at alternate sweep Trace A/Time: Displays frequency spectrum, and time domain waveform at center frequency simultaneously at alternate sweepTrace move/calculation: A → B, B → A, A ↔ B, A + B → A, A – B → A, A – B + DL → A Storage functionsNORMAL, VIEW, MAX HOLD, MIN HOLD, AVERAGE, CUMULATIVE, OVER WRITE Demodulation range: 2, 5, 10, 20, 50, 100, 200 kHz/divMarker display accuracy: ±5% of full scale (referenced to center frequency, DC-coupled, RBW: 5 MHz, VBW: 1 Hz, CW) FM demodulation waveform Demodulation frequency response: display function DC (50 Hz at AC-coupled) to 100 kHz

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Range: ≤ 20 kHz/div, VBW: off, at 3 dB bandwidthDC (50 Hz at AC-coupled) to 500 kHz

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Range: ≥ 50 kHz/div, VBW: off, at 3 dB bandwidth

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RBW: ≥ 100 kHz usable Input connectorN-J, 50 Ω IF OUTPUT: 455 kHz (RBW: ≤ 30 kHz), 10.695 MHz (RBW: ≥ 100 kHz), BNC connectorVIDEO OUTPUT (Y):Auxiliary signal input and0 to 0.5 V ±0.1 V (100 MHz, from lower edge to upper edge at 10 dB/div or 10%/div, 75 Ω terminated, BNC connector)outputCOMPOSITE OUTPUT: For NTSC, 1 Vp-p (75 Ω terminated), BNC connectorEXT REF INPUT: 10 MHz ±10 Hz, ≥ 0 dBm (50 Ω terminated), BNC connector Signal searchAUTO TUNE, PEAK → CF, PEAK → REF, SCROLL Zone markerNORMAL, DELTA Marker → MARKER → CF, MARKER → REF, MARKER → CF STEP SIZE, ∆ MARKER → SPAN, ZONE → SPAN Peak searchPEAK, NEXT PEAK, NEXT RIGHT PEAK, NEXT LEFT PEAK, MIN DIP, NEXT DIP MultimarkerNumber of markers: 10 max. (HIGHEST 10, HARMONICS, MANUAL SET) Noise power (dBm/Hz, dBm/ch), C/N (dBc/Hz, dBc/ch), occupied bandwidth (power N% method, X-dB down method), adjacent channel power (REF: total power/reference level/in-band level method, channel designate display: 2 channels x 2Measuregraphic display), average power of burst signal (average power in designated time range of time domain waveform), channelpower (dBm, dBm/Hz), template comparison (upper/lower limits x each 2, time domain), MASK (upper/lower x each 2, frequency domain) Save/recallSaves and recalls setting conditions and waveform data to internal memory (max. 12) or memory card Printer (HP dotmatrix, EPSON dotmatrix or compatible models):Hard copyDisplay data can be hard-copied via RS-232C, GPIB, and Centronics (Option 10) interfacePlotter (HP-GL, GP-GL compatible models): Display can be output via RS-232C and GPIB interface Language: PTL (interpreter based on BASIC) Programming: Using editor of external computerPTAProgram memory: Memory card, upload/download to/from external computerProgramming capacity: 192 kB Data processing: Directly accesses measurement data according to system variables, system subroutines, and system functions RS-232COutputs data to printer and plotter. Control from external computer (excluding power switch) GPIBMeets IEEE488.2. Controlled by external computer (excluding power switch). Or controls external equipment with PTAInterface function: SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1, C1, C2, C3, C4, C28 Automatic correction of insertion loss of MA1621A Impedance Transformer Correction accuracy (RF ATT: ≥ 10 dB):±2.5 dB (9 to 100 kHz), ±1.5 dB (100 kHz to 2 GHz), ±2.0 dB (2 to 3 GHz)

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Typical valueCorrectionAntenna correction coefficients:Correct display and measurement of field strengths (dBµV/m) for specified antennas. Internal antenna correction coefficients (MP534A/651A Dipole Antenna, MP635A/666A Log-Periodic Antenna, MP414B Loop Antenna, and four antennas user-defined; writes via GPIB or RS-232C interface, saves/loads to/from memory card) Functions:Saving/recalling measurement parameters/waveform data, uploading/downloading PTA programs; Memory card interfaceApplicable cards: SRAM, EPROM, Flash EPROM

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Only SRAM writable; Card capacity: 2 MB max. The SRAM card is supported by Windows95/98
® .Connector: Meets the PCMCIA Rel. 2.0, 2 slots EN61326: 1997/A2: 2001 (Class A)EMCEN61000-3-2: 2000 (Class A)EN61326: 1997/A2: 2001 (Annex A) LVDEN61010-1: 2001 (Pollution Degree 2) VibrationMeets the MIL-STD-810D
OthersFunctions Power (operating range)85 to 132/170 to 250 Vac (automatic voltage switching), 47.5 to 63 Hz, 380 to 420 Hz (85 to 132 V only), ≤ 320 VA Dimensions and mass320 (W) x 177 (H) x 351 (D) mm, ≤ 10.8 kg (without option) Ambient temperature0 to +50°C (operate), –40 to +75°C (storage)

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